hard · GMAT Quant
A quality-control signal sequence A_n is defined by A_1 = 1, A_2 = 3, and A_n = 2 A_n-1 + 3 A_n-2 for all integers n ≥ 3.
What is the remainder when A_100 is divided by 5?
- 1
- 2
- 3
- 4
- 0
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